Helping with Math
Worksheet: Dividing by 4
First notice that an answer key is available by the click of a box at the top of the page. Then you will see that learners practice the four times table before delving into division. Twenty-eight quotient-finding problems follow. A...
Helping with Math
Worksheet: Dividing by 2
Multiply by two, and then divide by two. This worksheet provided practice for beginning dividers. Note that the publisher assigns this to CCSS.Math.Content.3.OA.6, but you would need to do some explaining to actually get this and the...
Curated OER
Clock Arithmetic and Cryptography
High schoolers investigate modular clock arithmetic and cryptography. They perform basic operations in modular (clock) arithmetic and encode and decode messages using simple shift and affine ciphers.
Curated OER
Clock Arithmetic and Cryptography
Students explore the concept of modular arithmetic and cryptography. In this modular arithmetic and cryptography lesson, students use applets to explore modular arithmetic using a clock and Caesar Ciphers. Students exchange their ciphers...
Curated OER
Fraction King Lesson Plan
Students combine imagination, block manipulation, and computer applets to investigate fractions.